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Search the building code.

Every 2024 IRC section and the IBC as it loads, by number or topic, plus the local rules for your city. Free to search.

Detached houses, duplexes and townhouses up to 3 stories with their own exits use the IRC; every other building uses the IBC (IBC 101.2).

A random sample from 150 sections for San Antonio, TX, the 2024 IBC

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  • IBC 110.3.9

    Energy efficiency inspections

    • Energy inspections cover insulation R- and U-values, window U-values, duct insulation and HVAC and water-heating efficiency.

    Works withIBC Chapter 13

    International Building Code, 2024 · Chapter 1, Scope and AdministrationRead the full text (opens UpCodes in a new tab)

  • IBC 105.2

    Work exempt from permit

    • No building permit for sheds up to 120 sq ft, fences up to 7 ft (not pool barriers), retaining walls up to 4 ft, walks and drives up to 30 in, finish work and similar; exempt work still has to meet the code.

    Local review: Cities usually replace Chapter 1 with their own administrative rules. In San Antonio, permits, fees, time limits and inspections follow the city's adopted amendments and DSD procedures; confirm there before relying on these. Houses under the IRC have their own exemption list (IRC R105.2), with a larger shed limit.

    Works withIRC R105.2

    International Building Code, 2024 · Chapter 1, Scope and AdministrationRead the full text (opens UpCodes in a new tab)

Searches all 4,276 IRC 2024 sections, 5,532 IBC 2024 sections and defined terms (Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33 so far) and each city's local rules as they are added. Section numbers and titles from the International Residential Code and International Building Code, 2024 editions, copyrighted by the International Code Council; the IRC's electrical chapters (34 to 43) follow NFPA 70, the National Electrical Code. Requirements are summarized in our words (IRC Chapters 3 to 43, IBC Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33); read the full text at the link on each result. Local values come from each city's published documents.

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